Experimental Study on Cold Source Insulation Method for Gas Hydrates with Dry Ice Sublimation Hole Bottom Freezing Sampler

Abstract:

In order to improve the cold insulation effect of dry ice cold source of sampler, double-layer cold insulation method for dry ice cold source was put forward. It was proved by experiment that double layer cold insulation method for dry ice cold source could greatly prolong preservation time of dry ice in the hole bottom, and this method can be applied in the sampler design.